What does “the digit of the units place of the sum” mean?

By Pythagorean theorem, the missing sides of right triangles are listed below:

Case 1: x = 6 cm

Case 2: x = 12 ft

Case 3: x = 4 yd

Case 4: x = 9 in

Case 5: r = 40 mi

Case 6: r = 35 cm

Case 7: x = 15 cm

Case 8: r = 30 in

Case 9: x = 24 km

Case 10: r = 37 km

In this problem we find ten cases of right triangles, whose missing sides can be determine by using Pythagorean theorem:

r² = x² + y²

Where:

Now we proceed to determine the missing side for each case:

Case 1

x = √(10² - 8²)

x = 6 cm

Case 2

x = √(13² - 5²)

x = 12 ft

Case 3

x = √(5² - 3²)

x = 4 yd

Case 4

x = √(15² - 12²)

x = 9 in

Case 5

r = √(32² + 24²)

r = 40 mi

Case 6

r = √(21² + 28²)

r = 35 cm

Case 7

x = √(17² - 8²)

x = 15 cm

Case 8

r = √(24² + 18²)

r = 30 in

Case 9

x = √(26² - 10²)

x = 24 km

Case 10

r = √(35² + 12²)

r = 37 km

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The phrase :  the difference between 17m and 3 can be written as 17m - 3.

We have,

Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

Given is a phrase : the difference between 17m and 3.

We can write the given phrase as -

17m - 3

Therefore, the phrase :  the difference between 17m and 3 can be written as 17m - 3.

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complete question:

What is the algebraic expression for the following word phrase: the difference between 17m and 3?

A. 17m + 3

B. 17m • 3

C. 17m ÷ 3

D. 17m - 3

Hi help me please

Thus, the extreme points of s are (0,0), (2,2), (2,0), and (0,2), and the extreme directions are [2 -4], [-1 1], [0 1], and [0 -1].

To find the extreme points and extreme directions of the polyhedral set s, we need to first write down the set in standard form. We can rewrite the constraints as:

2x1 - 4x2 <= -4
-x1 + x2 <= 2
x2 <= 4
x2 >= 0

The first two constraints can be written as a matrix inequality:
[2 -4; -1 1][x1; x2] <= [4; 2]

The last two constraints can be written as x2 <= 4 and x2 >= 0. Thus, the polyhedral set s can be written as:
s = {x in R^2 : [2 -4; -1 1][x1; x2] <= [4; 2], x2 <= 4, x2 >= 0}

To find the extreme points, we can solve the linear program:

maximize 0x1 + 0x2
subject to [2 -4; -1 1][x1; x2] <= [4; 2]
x2 <= 4
x2 >= 0

The objective function is just 0x1 + 0x2, so it doesn't matter what the values of x1 and x2 are. The constraints, however, determine the feasible region. The intersection of the constraints is a polygon with vertices at (0,0), (2,2), (2,0), and (0,2). These are the extreme points of s.

To find the extreme directions, we need to look at the gradients of the constraints at each extreme point. If the gradient is non-zero, then that constraint is active at that point and the corresponding direction is extreme. The gradients of the constraints are:

[2 -4] for the first constraint
[-1 1] for the second constraint
[0 1] for the third constraint
[0 -1] for the fourth constraint

At the point (0,0), the first two constraints are active and their gradients are non-zero. Thus, the extreme directions are along [2 -4] and [-1 1].

At the point (2,2), the first two constraints and the third constraint are active. The gradients of the first two constraints are non-zero, as before, and the gradient of the third constraint is [0 1]. Thus, the extreme directions are along [2 -4], [-1 1], and [0 1].

At the point (2,0), the first two constraints and the fourth constraint are active. The gradients of the first two constraints are non-zero, and the gradient of the fourth constraint is [0 -1]. Thus, the extreme directions are along [2 -4], [-1 1], and [0 -1].

At the point (0,2), the second constraint and the third constraint are active. The gradient of the second constraint is non-zero, as before, and the gradient of the third constraint is [0 1]. Thus, the extreme directions are along [-1 1] and [0 1].

Therefore, the extreme points of s are (0,0), (2,2), (2,0), and (0,2), and the extreme directions are [2 -4], [-1 1], [0 1], and [0 -1].

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The amount of the principal investment is the sum of $10,000. The Option D is correct.

The equation "A = P(1+0.0430t)" represents the amount of money earned on a savings account with 4.3% annual simple interest, where a is the amount after t years, p is the principal investment, and 0.043 is the interest rate.

Given that the amount after 12 years is equal to $15,160, we can use the equation to solve for the principal investment:

[tex]\sf A = P(1+0.0430t)[/tex]

[tex]\sf \$15160 = P(1+0.043\times12)[/tex]

[tex]\sf\$15160 = P(1 + 0.516)[/tex]

[tex]\sf \$15160= P \times 1.516[/tex]

[tex]\sf P = \dfrac{\$15160}{1.516}[/tex]

[tex]\sf P = \$10000[/tex].

Therefore, the amount of the principal investment is the sum of $10,000.

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The solution is: The length of the rectangular tray is 1 9/10

We have,

given that,

Noah would like to cover a rectangular tray with rectangular tiles.

The tray has a width of 2 1/2 and an area of 4 3/4.

now, we have to find the length of the tray

we know that,

Rectangle is a four-sided flat shape where every angle is a right angle (90°).

Area of a Rectangle = Length * Width

where,

Area = 4 3/4

Length = ?

Width = 2 1/2

To find the length of the tray,

Length = Area/Width

Length = 4 (3/4) / (2 1/2)

Length = (19/4) / (5/2)

Length = 19/4 * 2/5

Length = 19/10

Length = 1 9/10

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complete question:

Noah would like to cover a rectangular tray with rectangular tiles. The tray has a width of 2 1/2 and an area of 4 3/4. What is the length of the tray?

The hypothesis referred to in this statement is likely the null hypothesis in a regression analysis, which assumes that the slope coefficient (b1) of the regression line is equal to zero, indicating that there is no relationship between the independent variable and the dependent variable. If the hypothesis is rejected, it means that there is sufficient evidence to suggest that the slope coefficient is not zero and there is a significant relationship between the independent and dependent variables.

In this context, the sample regression coefficient b1 represents the change in the predicted value of the dependent variable for a unit change in the independent variable. In other words, it indicates the slope of the regression line and how much the dependent variable changes for a unit change in the independent variable. If b1 is positive, it means that the dependent variable increases as the independent variable increases, and if b1 is negative, it means that the dependent variable decreases as the independent variable increases. The magnitude of b1 indicates the strength of the relationship between the variables, with larger values indicating a stronger relationship.

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Rounded to the nearest ten-thousandth, the probability is 0.9375.

Probability is a branch of mathematics in which the chances of experiments occurring are calculated. It is by means of a probability, for example, that we can know from the chance of getting heads or tails in the launch of a coin to the chance of error in research.

Let's assume that the probability of a randomly selected motorist driving more than 5 miles per hour over the speed limit is p. Then, the probability of a motorist not driving more than 5 miles per hour over the speed limit is 1-p.

The probability of at least one motorist driving more than 5 miles per hour over the speed limit can be found by using the complement rule. That is:

P(at least one motorist driving more than 5 miles per hour over the speed limit) = 1 - P(no motorist driving more than 5 miles per hour over the speed limit)

The probability of no motorist driving more than 5 miles per hour over the speed limit can be found by using the binomial distribution. Since there are 4 motorists and each one has a probability of 1-p of not driving more than 5 miles per hour over the speed limit, the probability is:

P(no motorist driving more than 5 miles per hour over the speed limit) = (1-p)⁴

Therefore, the probability of at least one motorist driving more than 5 miles per hour over the speed limit is:

P(at least one motorist driving more than 5 miles per hour over the speed limit) = 1 - (1-p)⁴

We are not given a specific value for p, so we cannot calculate the probability exactly. However, if we assume that p = 0.5 (i.e., there is a 50-50 chance of a randomly selected motorist driving more than 5 miles per hour over the speed limit), then the probability of at least one motorist driving more than 5 miles per hour over the speed limit is:

P(at least one motorist driving more than 5 miles per hour over the speed limit) = 1 - (1-0.5)⁴ = 0.9375

Rounded to the nearest ten-thousandth, the probability is 0.9375. However, if we assume a different value for p, the probability will be different.

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The expression that is equivalent to 135−−−√5–√ is: 131.764.

An equivalent expression is one that has the same value as another. To evaluate the given expression, the three minus signs all equate to -. So, the question is asking that we subtract the root of 5 from 135.

Also, the root of minus 1 will be subtracted from the answer that we arrive at.

135−−−√5 = 132.764

132.764 - √1 = 131.764

So, the decimal equivalent of this expression is 131.764.

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When the observed z-score is -2.15, we can find the p-value by looking up the value in a standard normal (z) table or using a calculator or software that provides p-values.

Step 1: Identify the z-score
The given z-score is -2.15.

Step 2: Find the p-value
To find the p-value, look up the z-score in a standard normal table or use a calculator. In this case, the p-value is approximately 0.0158.

So, the correct answer is:
c. 0.0158

This p-value represents the probability of observing a value as extreme or more extreme than the observed z-score in the standard normal distribution, assuming the null hypothesis is true.

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The expression in the scientific notation will be 7.79 × [tex]10^{7}[/tex] .

Simplifying 8.2 × [tex]10^{7}[/tex] - 4.1 × [tex]10^{6}[/tex]

To simplify the equation power should be same

To convert to decrease power the decimal will move to the right

It can be written as

8.2 × [tex]10^{7}[/tex] = 82.0 × [tex]10^{6}[/tex]

Now solving the equation

82.0 × [tex]10^{6}[/tex] - 4.1 × [tex]10^{6}[/tex]

= 77.9 × [tex]10^{6}[/tex]

To convert the equation into scientific notation

The decimal should be after one significant figure

To convert to increase power the decimal will move to the left

It can be written as

7.79  × [tex]10^{7}[/tex]

Simplifying the equation will give 7.79 × [tex]10^{7}[/tex] .

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The third graph is the graph of the quadratic function f(x) = 2(x - 4)² + 1.

The quadratic function of vertex(h,k) is given by the rule presented as follows:

y = a(x - h)² + k

In which:

The function for this problem is given as follows:

f(x) = 2(x - 4)² + 1.

Hence the coordinates of the vertex are given as follows:

x = 4, y = 1.

The vertex is the turning point of the graph of the quadratic function, hence the third graph is the correct option for this problem.

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The graph that represents the given quadratic equation is: Graph C which is the third graph

The general form of the quadratic equation is:

ax² + bx + c = 0

We are given the equation as:

f(x) = 2(x - 4)² + 1

Thus, at x = 0, f(x) = 33

at x = 1, f(x) = 19

Thus, only graphs C or D are correct

The quadratic function of vertex (h,k) is given by the expression:

y = a(x - h)² + k

where:

h is the x-coordinate of the vertex.

k is the y-coordinate of the vertex.

a is the leading coefficient.

Thus, graph C is correct because the coordinate of the vertex is (4, 1)

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The trigonometric ratios are tanθ = 6/√13 and secθ = 7/√13.

Given that, sinθ = 6/7.

Here, sinθ= y/r

If the point in the angle's terminal side is P=(x, y) then the trigonometric functions can be calculated as:

r=√(x²+y²)

7²=x²+6²

49=x²+36

x²=49-36

x²=13

x=√13

Now, tanθ = y/x = 6/√13 and secθ = r/x = 7/√13

Therefore, the trigonometric ratios are tanθ = 6/√13 and secθ = 7/√13.

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Number of container of paint is,

⇒ 6

Now, To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Given that;

An art teacher had 2/3 gallon of paint to pour into containers.

And, he poured 1/8 gallon of paint into each container until he ran out of paint.

Hence, Number of container of paint is,

⇒ 2/3 / 1/8

⇒ 2/3 × 8

⇒ 16/3

⇒ 5.33

Which is 5 and a third of a container which is counted in this so 6 is the answer

Thus, Number of container of paint is,

⇒ 6

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Answer:

30% play basketball

Step-by-step explanation:

=60/200 = 0.3 = 30%

Answer:

Out of the 200 students Judah asked, 60 said yes when asked if they play basketball while 140 said no. To determine the percentage of students who played basketball, we can divide the number of students who said yes by the total number of students and then multiply by 100. 

So, the percentage of students who played basketball is (60/200) x 100 = 30%.

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The probability a dichotomous test concludes negative given the actual condition is positive is known as the false negative rate or the Type II error rate.

In statistics, a dichotomous test is one that has only two possible outcomes: positive or negative. False negative rate or Type II error rate is the probability that a person who actually has the condition being tested for will receive a negative test result. This means that the test has failed to detect the presence of the condition, leading to an incorrect conclusion that the person is negative for the condition.

The false negative rate is an important measure of the accuracy of a test, particularly in medical testing where the consequences of a false negative can be serious. A high false negative rate means that a significant number of people with the condition are being missed by the test, leading to delayed diagnosis and treatment.

For example, a medical test for a disease might have a false negative rate of 10%. This means that out of 100 people who actually have the disease, 10 will receive a negative test result and be falsely reassured that they do not have the disease.

In summary, the false negative rate is the probability of a test concluding negative given the actual condition is positive and is an important factor to consider when evaluating the performance of a dichotomous test.

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The value of segment r is determined by applying Pythagoras theorem as 8.

The value of segment r is calculated by applying Pythagoras theorem as follows;

From the given diagram, we can set the following equation as follows;

OB² = AB²  +  OA²

The given parameters include;

OB = 2 + r

OA = r

AB = 6

Substitute these values into the equation and solve for r as follows;

(2 + r )² = 6²  +  r²

Simplify as follows;

4 + 4r + r² = 36 + r²

4r = 36 - 4

4r = 32

r = 32/4

r = 8

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The inclusion probability for unit 6 in a PPS sampling without replacement at the PSU level is calculated by dividing its size measure by the cumulative size measure, and then multiplying the result by the desired number of PSUs to be selected.

To determine the inclusion probability for unit 6 in a two-stage Probability Proportional to Size (PPS) sampling without replacement at the Primary Sampling Unit (PSU) level, follow these steps:

1. Calculate the size measure (e.g., population) for each PSU in the sampling frame.
2. Calculate the cumulative size measure for all PSUs.
3. Divide the size measure of unit 6 by the cumulative size measure to obtain the selection probability for unit 6.
4. Multiply the selection probability by the desired number of PSUs to be selected (e.g., n) to find the inclusion probability for unit 6.

In summary, the inclusion probability for unit 6 in a PPS sampling without replacement at the PSU level is calculated by dividing its size measure by the cumulative size measure, and then multiplying the result by the desired number of PSUs to be selected.

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If the current stock price of Purcell Industries is $15 and the strike price of the option is also $15, the option is considered to be at the money (ATM). Therefore, the value of the option will depend on various factors such as the time to expiration, volatility, and interest rates.

When the strike price of an option is equal to the current market price of the underlying stock, it is said to be at the money. In the case of Purcell Industries, since the current stock price is $15 and the strike price of the option is also $15, the option is at the money. An ATM option has no intrinsic value because the option does not have any profit or loss in the underlying asset.

The value of an ATM option is based solely on its time value, which is the amount of time remaining until the option's expiration date. The time value of an option can be influenced by various factors, including the volatility of the underlying asset, interest rates, and other market conditions. For example, an increase in volatility would increase the time value of an option because there is a greater chance that the stock price could move in a favorable direction for the option holder. Similarly, an increase in interest rates would increase the time value of a call option but decrease the time value of a put option.

Overall, an ATM option has no intrinsic value, and its value is based on various market factors. Therefore, it is important to consider these factors when deciding whether to buy or sell an ATM option.

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We can solve this problem by using a Venn diagram. Let's start by drawing two circles, one for Time and one for Newsweek:

```

   _________

 /           \

/             \

/_______________\

|               |

|               |

|               |

|               |

|               |

|     Time      |

|               |

|               |

|               |

|               |

|_______________|

\             /

 \           /

  \_________/

    Newsweek

```

Let x be the number of families that subscribe to both magazines. Then, we know that:

- 75 - x subscribe to Time only

- 50 - x subscribe to Newsweek only

- 5 subscribe to neither

We want to find the value of x. We know that the total number of families surveyed is 95, so:

Total = Time only + Newsweek only + Both + Neither

95 = (75 - x) + (50 - x) + x + 5

Simplifying the equation, we get:

95 = 130 - x

x = 35

Therefore, 35 families subscribe to both Time and Newsweek.

To answer the questions, let's first evaluate the given sets.

A = {a, b, c}

B = {c, d, e, f}

C = {1, 2, 3, 4}

D = {2, 3, 4, 5, 6}

Now, let's proceed with the calculations:

1. A - Bx(D - C)

  First, let's find (D - C):

  D - C = {2, 3, 4, 5, 6} - {1, 2, 3, 4} = {5, 6}

 Next, let's find Bx(D - C) (the Cartesian product of B and (D - C)):

  Bx(D - C) = {c, d, e, f} x {5, 6} = {(c, 5), (c, 6), (d, 5), (d, 6), (e, 5), (e, 6), (f, 5), (f, 6)}

 Finally, let's find A - Bx(D - C):

  A - Bx(D - C) = {a, b, c} - {(c, 5), (c, 6), (d, 5), (d, 6), (e, 5), (e, 6), (f, 5), (f, 6)} = {a, b, c}

 Therefore, A - Bx(D - C) = {a, b, c}.

2. AxC ∩ (AxD)

  First, let's find AxC (the Cartesian product of A and C):

  AxC = {a, b, c} x {1, 2, 3, 4} = {(a, 1), (a, 2), (a, 3), (a, 4), (b, 1), (b, 2), (b, 3), (b, 4), (c, 1), (c, 2), (c, 3), (c, 4)}

Next, let's find AxD (the Cartesian product of A and D):

  AxD = {a, b, c} x {2, 3, 4, 5, 6} = {(a, 2), (a, 3), (a, 4), (a, 5), (a, 6), (b, 2), (b, 3), (b, 4), (b, 5), (b, 6), (c, 2), (c, 3), (c, 4), (c, 5), (c, 6)}

 Finally, let's find AxC ∩ (AxD):

AxC ∩ (AxD) = {(a, 1), (a, 2), (a, 3), (a, 4), (b, 1), (b, 2), (b, 3), (b, 4), (c, 1), (c, 2), (c, 3), (c, 4)} ∩ {(a, 2), (a, 3), (a, 4), (a, 5), (a, 6), (b, 2), (b, 3), (b, 4), (b, 5), (b, 6), (c, 2), (c, 3

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We can start by simplifying the denominator by factoring out x from the square root. That gives us: ∫18dx / (2x + x√x) = ∫18dx / (x(2 + √x)).Now, we can use substitution by letting u = 2 + √x. Then, du/dx = 1/(2√x), or √x = 1/(2u) - 1/4. Also, dx = 4u - 4u^2 du.

To evaluate the integral ∫18dx / 2x+x√x, we first notice that the denominator can be simplified by factoring out x√x. Therefore, we have:

∫18dx / 2x+x√x = ∫18dx / x(2+√x)

Next, we can use a substitution u = 2+√x and du/dx = 1/2√x to transform the integral:

∫18dx / x(2+√x) = ∫du / (u-2)^2

Using partial fraction decomposition, we can rewrite the integrand as:

∫du / (u-2)^2 = ∫(1/(u-2) - 1/(u-2)^2) du

Integrating each term separately, we obtain:

∫18dx / 2x+x√x = ln|u-2| + 1/(u-2) + C

Substituting back u = 2+√x, we have:

∫18dx / 2x+x√x = ln|√x+2| + 1/(2+√x) + C

Therefore, the solution to the integral is ln|√x+2| + 1/(2+√x) + C.

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Statement (A) is true about the graph of the line x = 2. Hence, option A is correct answer.

The equation of the line x = 2 is independent of the value of y coordinate. Therefore, the graph of this line is a vertical line passing through the point (2, y) for all y values.

Therefore, option (A) is the correct statement. Option (B) is false because the line is vertical, not horizontal. Option (C) is false because the line passes through all points with x-coordinate equal to 2, not just (0, 2). Option (D) is false because the line does not pass through the origin (0, 0).

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Complete question - Which statement about the graph of a line equal to “x=2” is true.

A. It is a vertical line.

B. It is a horizontal line.

C. It passes through (0, 2)

D. It passes through the origin.

Step-by-step explanation:

The amplitude is the value that the cosine is being multiplied by.

The general equation of a sinusoid is

[tex] a \cos(b(x + c) ) + d[/tex]

where a is the amplitude

[tex] \frac{2\pi}{ |b| } [/tex]

is the period

-c is the phase shift

d is the midline(vertical shift)

Here the amplitude is -1/2 so b is the correct answer.

Answer:

the amplitude of the function that is y= -1/2 cos x, is 1/2.

Step-by-step explanation:

The cross product of the unit vectors j and k is i.

The cross product of two vectors a and b is defined as:

a x b = |a| |b| sin(theta) n

where |a| and |b| are the magnitudes of vectors a and b, theta is the angle between the two vectors, and n is a unit vector perpendicular to both a and b, with a direction given by the right-hand rule.

Here, j and k are unit vectors in the y and z directions, respectively. Since j and k are perpendicular to each other, the angle between them is 90 degrees, and the sin(theta) term in the cross product formula is equal to 1.

Thus, we have:

j x k = |j| |k| sin(90) n

Since j and k are unit vectors, their magnitudes are both equal to 1. Substituting these values into the equation above, we get:

j x k = 1 x 1 x 1 n = n

Therefore, the cross product of j and k is a unit vector n that is perpendicular to both j and k.

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The stencil patterns per square feet she have when completed are:

[tex]\[ \text{Number of stencil patterns per square foot} = \frac{{13n}}{{160}} \text{ patterns/ft}^2 \][/tex]

To find the number of stencil patterns per square foot, we first need to calculate the total area of the floor in square feet. The floor measures [tex]8[/tex] feet by [tex]20[/tex] feet, so its total area is given by:

[tex]\[ \text{Area of the floor} = \text{Length} \times \text{Width} = 8 \text{ ft} \times 20 \text{ ft} = 160 \text{ ft}^2 \][/tex]

Next, we need to determine the total number of stencil patterns that will be used. The homeowner has [tex]13[/tex] different stencils. However, we don't know how many times each stencil will be repeated, so we'll assume that each stencil is used an equal number of times.

Let's denote the number of times each stencil is used as [tex]n[/tex]. Then the total number of stencil patterns used is given by [tex]\( 13 \times n \)[/tex].

To find the number of stencil patterns per square foot, we divide the total number of stencil patterns by the total area of the floor:

[tex]\[ \text{Number of stencil patterns per square foot} = \frac{{13 \times n}}{{\text{Area of the floor}}} = \frac{{13 \times n}}{{160 \text{ ft}^2}} \][/tex]

Since we don't have a specific value for [tex]n[/tex], we can express the answer in terms of [tex]n[/tex]:

[tex]\[ \text{Number of stencil patterns per square foot} = \frac{{13n}}{{160}} \text{ patterns/ft}^2 \][/tex]

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If two matrices a and b have exactly the same eigenvalues (with the same algebraic multiplicity) and eigenvectors (with the same eigenspace for each distinct eigenvalue), then we can conclude that a and b are similar matrices.

This means that there exists an invertible matrix P such that a = PBP^-1, where B is a diagonal matrix with the same eigenvalues as a and b on the diagonal entries.

This can be proved using the fact that if a matrix A has a complete set of eigenvectors, then A can be diagonalized as A = PDP^-1, where D is a diagonal matrix whose entries are the eigenvalues of A, and P is the matrix whose columns are the eigenvectors of A. If two matrices have the same eigenvectors, then they can be diagonalized by the same matrix P.

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The measure of the missing angle of the line is x = 47°

Given data ,

Let the lines be represented as m and n

Now , the measure of angle = 141°

Let the missing angles be x and 2x

Now , the equation is

x + 2x = 141°

On simplifying , we get

3x = 141°

Divide by 3 on both sides , we get

x = 47°

Hence , the missing angles are 47° and 94°

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The temperature in Fahrenheit is (9/5)X + 32.

Use the formula F = (9/5)C + 32, where C represents Celsius degrees and F represents Fahrenheit degrees

To convert X to Fahrenheit degrees."

Using the formula, we can convert Celsius to Fahrenheit as follows:

F = (9/5)C + 32

Substituting the given value, we get:

F = (9/5)(X) + 32

Simplifying:

F = (9/5)X + 32

Therefore, the temperature in Fahrenheit is (9/5)X + 32.

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We are given a series s and its partial sum sk. We want to find the least value of k such that the alternating series error bound guarantees that |s−sk|≤0.0005.

Explanation:

The alternating series error bound tells us that the absolute value of the error in approximating an alternating series by its nth partial sum is less than or equal to the absolute value of the next term in the series. That is, for an alternating series of the form ∑(−1)na[n], where a[n] > 0 for all n, the error in approximating the series by its nth partial sum s[n] = ∑(k=1 to n)(−1)ka[k] is given by:

|s - s[n]| ≤ a[n+1]

In this case, our series is ∑(n=1 to infinity)(−1)^n / (n^2n). We want to find the least value of k for which the error in approximating the series by its kth partial sum is less than or equal to 0.0005.

Using the alternating series error bound, we have:

|s - s[k]| ≤ 1 / (k^(2k+2))

We want this to be less than or equal to 0.0005, so we solve the inequality:

1 / (k^(2k+2)) ≤ 0.0005

k^(2k+2) ≥ 2000

Since k is a positive integer, we can use trial and error to find the least value of k that satisfies this inequality. It turns out that k = 4 is the smallest value that works, as 4^(2(4)+2) = 65536 > 2000. Therefore, the least value of k for which the alternating series error bound guarantees that |s - s[k]| ≤ 0.0005 is k = 4.

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